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Could you show the output log when you execute cmake? Do you have two different versions of the OpenSSL library in your environment?

> Yes, I have different openssl versions built locally, in Conan packages. Everything is exactly the same, but with different openssl version. I am launching the build from https://github.com/conan-io/conan-center-index/tree/master/recipes/libwebsockets/all, with:...

@lws-team it's my pleasure. @memsharded I believe I have identified the root cause of the issue. # explore I wrote a demo.c file that calls the function HMAC_CTX_new and attempted...

This issue is similar to the one I encountered last time, where the openssl library found through pkgconfig did not have an absolute path, resulting in a linking error. I...

> Oh... we run `find_package(OpenSSL ...` inside the stanza... did you mean this kind of thing? > > ``` > diff --git a/lib/tls/CMakeLists.txt b/lib/tls/CMakeLists.txt > index 230b0d29..b341fea1 100644 > ---...

**To some extent, I agree with the above viewpoint(that On a side note);** Also i test below content in CMakeLists.txt on debian11.8 with cmake 3.26.3 and openssl 1.1.1w. ``` cmake_minimum_required(VERSION...

Does it still cause issues in the latest v4.3.3 version(it links the library with an absolute path)? [when you are using non-distro SSL](https://github.com/warmcat/libwebsockets/blob/main/READMEs/README.build.md)(same with you having two different versions of...